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Bid Title: Medical District Drainage Tunnel Extension at Ehrhardt Street
Category: Stormwater
Status: Closed


A MANDATORY pre-bid conference for the Project will be held on Monday, November 15th at 2:00 PM at the City of Charleston Department of Stormwater Management, 2 George Street, Suite 2100, Charleston, SC 29401. Bids will not be accepted from Bidders that do not attend the mandatory pre-bid conference.

Bids for the construction of the Project will be received from Prequalified Bidders at the Department of Stormwater Management located at 2 George Street, Suite 2100, Charleston, SC 29401, until Friday, December 10, at 2:00 PM local time. At that time the Bids received will be publicly opened and read.

The Project includes the following Work:

Construction of a stormwater tunnel and drop shaft structure that will service a portion of the Medical District. The Ehrhardt Tunnel will be connected to the Spring Fishburne US 17 Drainage Tunnel System at the existing Cannon Street Shaft. Construction includes one 54-inch outside diameter steel drilled drop shaft to a depth of approximately 140 feet below grade; a concrete vortex structure; a concrete bulkhead in an existing tunnel; approximately 900 feet of 8-feet inside diameter cast-in-place concrete tunnel; installation of surface drainage collection piping and structures; and all other associated activities.


Prequalified Bidders Listing

Bids will not be accepted from Bidders which have not been Prequalified by the Owner. The following Contractors have previously submitted a qualification package to demonstrate Contractor’s qualifications to perform the Work for this Project and have been determined by the Owner as being Prequalified to Bid the Project:

  1. Atkinson Construction
  2. Kiewit Infrastructure South Co.
  3. Michels Tunneling
  4. SAK Construction
  5. Super Excavators, Inc.
  6. Triad Engineering and Contracting Co.

 Obtaining the Bidding Documents

Information and Bidding Documents for the Project can be found at the following designated website:

Bidding Documents may be downloaded from the designated website. Access rights to the designated website may be obtained by emailing , or by calling Davis & Floyd, Inc. at (843) 554-8602, and requesting such access. There is no fee for access to or download of digital documents. Prospective Bidders are required to register with the designated website as a plan holder.

The designated website will be updated periodically with addenda, lists of registered plan holders, reports, and other information relevant to submitting a Bid for the Project. All official notifications, addenda, and other Bidding Documents will be offered only through the designated website. Neither Owner nor Engineer will be responsible for Bidding Documents, including addenda, if any, obtained from sources other than the designated website. For all further requirements regarding bid submittal, qualifications, procedures, and contract award, refer to the Instructions to Bidders that are included in the Bidding Documents.

Publication Date/Time:
11/5/2021 2:00 PM
Closing Date/Time:
1/6/2022 2:00 PM
Pre-bid Meeting:
11/15/2021 @ 2:00pm
Contact Person:
Steve Kirk, PE
Business Hours:
8:30am - 4:00pm
Plan Holders List:
Pre-Qualified Vendors
Related Documents:

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